The “Ocean Cleanup” project deployed a 2,000-foot floating debris trap in September near a drifting plastic patch in the Pacific Ocean that’s twice as big as Texas. It broke.
An anonymous reader quotes NPR:
Invented by Boyan Slat when he was just 17, the barrier has so far done some of what it was designed to accomplish. It travels with wind and wave propulsion, like a U-shaped Pac-Man hungry for plastic. It orients itself in the wind and it catches and concentrates plastic, sort of. But as Slat, now 24, recently discovered with the beta tester for his design, plastic occasionally drifts out of its U-shaped funnel. The other issue with the beta tester, called System 001, is that last week, a 60-feet-long end section broke off.
The first issue, Slat said, was likely due to the device’s speed. In a September interview with NPR, he said the device averages about four inches per second, which his team has now concluded is too slow. The break in the barrier was due to an issue with the material used to build it. “In principle, I think we are relatively close to getting it working,” Slat said in an interview Saturday with NPR’s Michel Martin. “It’s just that sometimes the plastic is also escaping again. Likely what we have to do is we have to speed up the system so that it constantly moves faster than the plastic.” For the material failure, Slat said his team will probably try to locally reinforce the system to combat the problem of material fatigue.
Slat’s U-shaped plastic trap is now being towed the 800 miles back to Hawaii for repairs.
of this story at Slashdot.
Source:: Slashdot